| Names | |
|---|---|
| IUPAC name 3-(1,3-Benzodioxol-5-yl)-2-methylpropanal | |
| Other names 2-Methyl-3-(3,4-methylenedioxyphenyl)propanal; 2-piperonylpropanal Helional Ocean propanal | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider | |
| ECHA InfoCard | 100.013.528 |
PubChem CID | |
| UNII | |
CompTox Dashboard (EPA) | |
| |
| |
| Properties | |
| C11H12O3 | |
| Molar mass | 192.214 g·mol−1 |
| Appearance | Colorless liquid |
| Odor | floral, herbaceous |
| Density | 1.162 g/cm3 |
| Boiling point | 282 °C (540 °F; 555 K) |
| Hazards | |
| GHS labelling: | |
| | |
| Warning | |
| H315, H319, H335 | |
| P261, P305+P351+P338 | |
| Safety data sheet (SDS) | [1] |
| Legal status | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Helional (from heliotropin, from which is it commonly derived) is a chemical compound used as a perfume in soap and laundry detergent. Chemically it is an aldehyde with a hydrocinnamaldehyde motif; a structural element which is present in a number of other important commercial fragrances and odorants. [3]
Several synthetic routes exist but the most common is a crossed-aldol condensation between piperonal (heliotropin) and propanal followed by selective hydrogenation of the intermediate alkene. This produces a racemic product.